Rotary punching and notch cutting machine



July 25, 1939. F, L MANNY 2,167,279

ROTARY PUNCHIHG AND NOTCH CUTTING MACHINE IN VENTOR.

n i f July 25, 1'939. l F. MANNY 2,167,279

ROTARY PUNCHIHG AND NOTCH CUTTING MACHIE Filed July 14,l 1938 4Sheets-Sheet 2 mlwlll lly M 'III ff 25 l 2 B? 5a/140% @E @Mw ATTORNEYSJuly 25, 1939. F. MANNY l ROTARY PUNCHIHGA AND NOTCH CUTTING MACHINE 4Sheets-Sheet 5 Filed July 14, 1938 lllllllllllllllll il x INVENTOIQ/7/7? Amig Pff/L /f/d BY @J of M July'25, 1939. F. MANNY 2,167,279

ROTARY PUNCHIHG AND NOTCH CUTTING- MACHINE Filed July 14, 1938 4Sheets-Sheet 4 INVENTOR.

ATTO EYS Patented July 2 5, 1939 UNITED STATES PATENT OFFICE Fred 'L.Manny, Benton Harbor, Mich., assignor to F. P. Rosback Company, Benton Iiarbor,

Mich.

Application July 14, 1938, Serial No.'219,113

33 Claims.r (Cl. 164-87) This invention relates to improvements inrotary punching and notch cutting machines.

The main objects of my invention are: First, to provide a novel machinefor forming slotted holes in ledger sheets, notebook sheets and thelike. l Second, to provide a machine of the type described having boringand cutting 4tools acting simultaneously on the edge of a stack ofsheets to be provided with slotted holes.

Third, to provide a boring and cutting machine for a stack-ofledgersheets and the like provided with a rotary punching or boring tool andan improved slotting; or cutting tool, the

Vl5 tools being associated in a novel relation whereby to form slottedholes in a single stroke or actuation of the machine.

Fourth, to provide a machine characterized by a rotatable boring toolanda lslotting cutter and improved means for actuating and retracting thesame in unison.

Fifth, to provide a machine adapted to form slotted openings in the sideof a stack of sheets and the like in a single operation, the saidmachine having novel actuating and clutch instrumentalities forperforminga single operative stroke, returning to initial position, andcoming.

to rest.

Sixth, .to provide a machine of the type de- .aoscribed having novelchip or waste removing provisions.

Further objects relating toV details and economies of myV invention willdefinitely appear from the description to follow. A The invention is de-35 lined in the claims. Y

A structure embodying the features of my invention is illustrated in theaccompanying drawings, Wherein:

Fig. 1 is a view in front elevation of the ma- '40 chine of myinvention.

Fig. 2 is a viewl in side elevation of my machine partially broken awayto illustrate the actuating mechanism therefor.

Fig. 3 is a view in vertical section on line 3'-3 45 of Fig. 6,illustrating more clearly details of construction of the machine. f

Fig. 4 is an 'enlarged fragmentary view illustrating a portion of thenovel chip removing mechanism of my invention. 50- Fig. 5 is a top planview of my machine partially broken away and in section to illustrat Y)certain details of the construction. Fig. 6 is a fragmentary view inhorizontal section illustrating the actuating and clutchinstrumentalitles of the machine.

`Fig. 7 is anl enlarged fragmentary view partially broken away and invertical section, illustrating 'details of the clutch mechanism.

Fig. 8 is an enlarged fragmentary view in horizontal section on line 8-8of Figs. 3 and 9. 5 Fig. 9 is a detail view in section on line 9- 9 ofFig. 8, illustrating the manner of attaching the notching cutterconstituting one of the tools of my machine, vand also illustrating thetype of work performed by the machine. l0l

Fig. 10 is a fragmentary view partially broken awayand in vertical'section illustrating the rotary punching or boring and cutting ornotch-'- ing tools of my machine in operative relation to one another.'15

Fig. 11 is a fragmentary view in vertical section illustrating theconstruction of the work stripper mechanism employed on the machine.

The present invention relates to machines of the type employed informing notched or slotted 20 openings along the edges of sheets, suchas ledger sheets, notebook sheets and the like, adapted to receivebinder elements. `'I'he type of openings referred to is illustrated ,inFig. 9, wherein a stack of sheets is designated bythe reference 25character A, the openings B, and the slots connecting the openings withthe edge` of the sheets C. In hitherto known machines it has beenproposed to form the said openings and slots by aplurality of successiveoperations and in my co- I pending application, .Serial No. 171,323,filed October 27, 1937, I describe and claima machine which is welladapted for that purpose. Although particularly designed for thenotching and aperturing of paper sheets for ledgers, notebooks, and thelike, it will be apparent to those skilled in the art that the machineof my invention 'is well adapted for forming `notched openings in theedges of other types of laminated or stacked sheets, such as, forexample, thin, soft 40 metal sheets, or wood veneers, or other analogoussheet material wherein' it is desired to provide notched edges for anornamental or functionalv purpose.

The advantages of simultaneously performing a boring or rotary punchingoperation whereby the openingsB are formed and a notching or slotting.roperation whereby slots C are formed are obvious, however this has notheretofore been accomplished ywith commercial success in my ownexperience, due mainly to the difficulty of designing a slotting cutteradapted to be asso-k ciated 'in suitable relation to the boring tool tooperate/'without excessive power requirement or without deection fromthe desired relation removal of chips.

. vertical adjustment of .the sleeve.

under pressure or in a manner to permit proper 'I'he present machineeliminates all of these diiiiculties.

Referring to the drawings, the reference numeral I in general indicatesthe machine of my invention, which includes a work table 2 supported bysuitable legs 3 or other standards'. In the actual machine constructedin accordance with my invention, I enclose the space beneath the tableand within the area. between the legs by a suitable sheet metal shieldor skirt 4 providing room to accommodate the actuating and clutchinstrumentality, which is designated generally 5 and which rests on asub-table or 'ledge 6 suitably supported in the space thus provided t(see Fig. 3). The` table 2 is provided with a vertically disposedcylindrical guide I and the subtable 6 has a cylindrical guide 8 invertical alinement with guide l to slidingly receive a verticallyreciprocable tubular actuator member 9. This member is hollow throughoutits length to receive a strong coil return spring I0 whose,ends abutrespectivelya thrust ring II secured interiorly of tubular member 9adjacent the `upper end thereof and a iixed abutment or sleeve I2telescoping within tubular member 9 at the lower end thereof. The saidabutment sleeve I2 is preferably made axially adjustable relative to theframe of the machine in any suitable manner, but, referencel being hadto Figs. 3 andI 4, I indicate a readily feasible manner of securing thisadjustable mounting by screw threading sleeve I2 on the lower endthereof, as indicated by the refe-rence numeral I3, and threadedlyengaging the same with a bracket I4 supported `on the frame or sub-tablein any suitable manner, whereby the said abutment sleeve may .e loweredand elevated by simply rotating the same. By the foregoing provisions,it will be appreciated that the thrust effort which coil spring I0exerts on ring II may be readily adjusted.

One side of the tubular drive member 9 is provided with a suitableactuating rack I5 which extends through a longitudinal opening' I6 pro'vided in guide 8 to accommodate the same, the said opening alsoaccommodating a drive pinion Il suitably journaled in the guide, asillustrated in Fig. 6. This pinion serves to shift member 9 downwardlyon an operative or'boring and cutting stroke against the. force ofspring I0 in the manner which will be more particularly described, theupward or return motion of the member being effected through the agencyof the thrust spring, as will be apparent.

Tubular drive member 9 at its upper end above table 2 carries ahousing-like carriage I8 (see Fig. 3)v which is secured to the drivemember in any suitable manner to partake of its vertical reciprocatingmovement. Carriage I8 carries the boring and cutting instrumentalitieseffective to form the slotted openings in the work A and it also carriesother instrumentalities which will be more particularly described.

Referring to Fig. 3, it will be seen that the carriage I8 is cored outat I9 to provide a cylindrical chamber receiving a cylindrical boringtool carrying sleeve 20 for vertical adjustment in the chamber. Thisadjustment is eected by means of a knurled screw 2I threadedly carriedon an ear 22 integral with carriage I8 and extending through an aperture23 in the carriage into a suitable recess 24 formed in sleeve 20,whereby rotation of the screw effects a slight Suitable means not shownin detail are provided t0 .100k

vertically so as to space the same properly froml table 2 for bestoperation.

The sleeve 20 rotatably journals a -boring tool spindle 25 by means ofend thrust bearings designated 26. At one end, spindle 25 is secured toa pulley 21 above the sleeve which is maintained in spaced relation tothe uppermost bearing 26 by a. boss 28 formed on the pulley. At itsother end, spindle 25 extends through the lowermost bearing and ispinned to a hollow boring tool chuck 29.

This boring tool chuck has a side opening 30 formed therein adapted toregister once each rotation of thev same with one arm of a suctionpassage 3| formed in carriage I9, whereby to effect removal of chipspassing upwardly through the hollow rotatable boring tool 32 which islocked in chuck 29. In Fig. 10, I illustrate suitable means for securingthe boring tool 24 to the chuck, the boring tool 24 being held` fromrotation in the chuck by engagement of a recess or notch at the upperend thereof with an inwardly projecting lug or pin 33 carried by thechuck and being restrained from axial movement by means of a suitablepivotedlatch ordetent 34 on the chuck engaging an annular recess 35 inthe tool.

A cutting or slotting tool,- indicated by the reference numeral 36,isdisposed adjacent boring tool .hardened sheet metal bent in suitableform or outline to cut the desired shape of slot C. The sharpenedlowermost edge 31 of tool 36 is disposed in the same horizontal planewith the cutting edge 38 of boring tool 32 and the boring Atool andforward cutting edge or nose 39 of cutter 36 are almost though not quitein contact, it being preferable to allow a very small clearance, say ofapproximately .001 inch, between the said rotary and fixed tools. Fromits point of adjacency to the boring tool cutting edge, 38, the forwardedge or nose 39 of notching tool 36 is inclined rearwardly and upwardly,as illustrated in Fig. 10, whereby to effect a clean slicing actionthrough the stack of sheets.

'I'he blade of tool 36 is secured to a cutter head 40 by means of asuitable bolt 4I (see Fig. 9) with a spacerV piece 42 disposed betweenthe sides of the blade to rigidity the same. Cutter head 48 is supportedon carriage I8 for adjustment laterally relative tothe boring tool 32 bymeans of the slot and bolt arrangement. 43 illustrated in Fig. 3,whereby the clearance of the two tools may be altered as desired. Asstated, I prefer to employ a small clearance between tools 32 and 36since this permits virtual severance of the paper between the notch Cand opening B, the severance being rendered complete by tearing of thenegligible paper fragment remaining between tools 32 and 36 under theinfluence of the chip removing suction to be described. In this manner,friction caused by contact of the rotatable and angularly fixed toolv isavoided.

In order to remove chips excised by cutter 36, I provide a hollow tube44 connecting an opening 45 in cutter head 40 and the vacuum passage 3I.'Ihs passage communicates with the vinterior of hollow actuator member 9as illustrated in Fig. 3, vwhereby chips removed bycutters 32 and 36will be drawn rearwardly and downwardly when a state of suction 0rpartial vacuum iscreated within the said hollow member and passage.

To create such suction, I employ a suitable blower 46 whose intake isconnected with tubular member 9 as illustrated in Figs. 3 and 4 andwhich discharges into a foraminated waste receiving box 41 carriedbeneath sub-table 6. Blower 46 is driven by a suitable motor in a motorhousing 48 supported on bracket I4, the lead wires for the motor beingdesignated by the reference numeral 49 in Fig. 4.

The instrumentalities for reciprocating tubular actuator members 9 andthe boring and cutting instrumentalities carried thereby will now bedescribed. Referring to Figs. 3, 6, and 7, the shaft 50 whereon thepinion I1 is mounted has a large gear I loosely mountedfor free rotationthereon. This gear is in mesh with a pinion 52 driven from`a train ofgears, generally designated 53, actuated by a motor 54 on sub-table 6,the said motor, gears, and pinions constituting a part of the actuatingand clutching instrumentality 5 referred to above. Gear 5I is connectedto one toothed member 55 of a clutch 56, the other -to'oth member 51 ofwhich is splined on the end of shaft 50. As illustrated in Fig. '1. theclutch member 51 is in the form of an elongated sleeve and has the endthereof closed by a suitable disk or plate 58,. The extreme end of shaft50 is drilled axially to provide a sp'ace 58 whereinI dispose a coilcompression spring 68 normally tending to sepa- 4rate the clutch members51 and 55 and to maintain them in the separated relation illustrated inFigs. 6 and 7. Clutch member 51 also carries a radially projecting pin6I for a purpose to be described.

The sub-table 6 is provided wtiha bracket 62 which is drilled coaxiallywith shaft 58 to provide a horizontal cylindrical guide 63 for anaxially` sliding, angularly restrained tappet 64. 'I'his tappet has onits forward end an anti-friction ball 65 engaging thrust disk 58 o`f theclutch member 51, the said tappet when actuated serving to urge theclutch members into engagement 'in opposition to theforce of coil spring60. For

felt that their construction 'and arrangement will.

be understood without furtherl description or illustration. j

. From the foregoing, it is apparent that when ratchetv 66 is indexed bypawl 68 one step in the direction illustrated by the arrow in Fig. '7,the tappet 64 will be shifted to the right, engaging clutch members 55and 51 and thereby drivingly connecting pinion I1 with rotatinggear'5I.' My invention contemplates means for holding the clutch'membersin engaging position during the l resultant downward stroke of actuatormember 9 and the tools carried thereby. Referring to Figs. 6 and 7, thismeans consists of a slidable latch 4'member or pin' 14 slidably mountedin brackets 15, 16 carried on sub-table 6, which latch member or' pin iscoupled by means of a cross head 11 for axial sliding movement with rod18. A'coil spring 19 surrounding pin 14 between cross head 11 andbracket15 urges the said pin transversely of andinto engagement with theside of tappet 64, the bracket 62 which guides the tappet being providedwith a transverse opening for thiskpurpose. Tappet 64 has a recess 80formed in the side thereof and the end of .pin 14 is shaped so as toenter recess 88 when the latter is axially alined with the pin. In thismanner, once the tappet 64 is advanced to the righty as illustrated inFig. '1, into alinement with pin 14, the latter drops intoengagementwith the recess under the influence of spring 19, thuslatching the tappet in operative position and holding clutch members 55,51 in engagement. This results in transmission of power from thecontinually rotating gear 5I to shaft 50 through the clutch 56 and theresultant actuation of member 9 on a boring and cutting stroke by meansof rack I5 and. pinion I1 meshing therewith. Thus, the tools 32, 36 passinto and throughv the stack of sheets or work A forming the slottedopenings B, C in the edge thereof.

A When the operative stroke has been completed, it is of coursenecessary to declutch gear 5I from shaft 50 and thereby disconnectpinion I1 from its source of power'. This is effected automatically bythe engagement of `radial pin 6I on the clutch member 51 with rod 18 toshift the same rearwardly and lthus withdraw.' latch member 14 fromrecess 88' in .the tappet. 'I'he clutch member 51 and tappet 64 areurged by coil spring 60 rearwardly or to the left as viewed in Fig. 'Ito disconnect clutch 56. It will be appreciated that upon engagement -ofthe clutch at the beginning of the stroke the radial pin- 6I is broughtinto alinement with r'od 18 to position the parts for displacement ofthe rod and disengagement of the clutch at the end of an operative ordown stroke. In practice, radial pin 6I, rod 18,-transverse pin 14 andrecess 88 are designed and located so as to permit pin 6I to clear rod18 at the beginningV of the rotation of clutch member 51 and before thelatch members take ee When the clutch is disconnected as described, theactuator member 9 and tools actuated thereby are returned vertically bymeans of the strong coil spring lenclosed inthe said drive member.

return of the member under the influence of the spring, it would beattendedv by an excessive impact. To overcome this difliculty, I providethe pneumatic brakeor dashpot type of shock absorber illustrated inFigs. 2, 3, and 5 and designated'by the reference numeral 8| This brakeconsists ol the dashpot cylinder 82 suitably mounted in the worksupporting table, one end of which communicates with the atmospherethrough a passage or tube 83 and adjustable regulating valve 84 (seeFigs. 3 and 5). A plunger 85 works in cylinder 82 and is pivotallyconnected to a collar 86 rigidly carried on actuator member 9.Accordingly, the upward or return movement of the drive member'is acontrolled one due to the pneumatic braking or dashpot action of thedevice 8| which entirely eliminates shocks and resultant likelihood ofbreakage.

In order to rotate boring tool spindle 25, I utilize the pulley 21referred to above and a further driving pulley 81 on the verticallydisposed shaft of a suitable'motor 88. This motor is supported oncarriage I8 in anydesired manner. The drive belt 89 is trained aroundpulleys 21,81 to effect continuous rotation of boring tool spindle 25. Asuitable hood or shield 90 is secured to carriage I8 to enclose andprotect the pulleys and belt.

The various actuating.. motors described'above are under the control ofswitches |90, ISI conveniently mounted on the front of the machine` Oneof these switches governs the boring tool ro- Obviously, were noprovisions made to brake the tating-motor 88 and the actuating motor 54for plunger rod 9, while the other switch controlsv the blower drivemotor in housing 48. The connections to the motors are conventional andhave not been illustrated. If desired, a jeweled warning light |92 maybe employed to indicate when the actuating circuits are energized.

My machine also includes an improved type of stripper device forengaging the Work and permitting withdrawal of the tools 32, 36 at theend of the boring and slotting stroke. 'This stripper is illustrated in'Figs. 1, 3, and 11 and is designated generally by the reference numeral9|. It consists of a presser foot 92 secured to hollow tubes 93 adaptedto telescope within cored-out recesses 94 on the forward part ofcarriage I8. 'Ihe recesses are closed at their upper ends by threadedplugs 95 which serve as abutments for compression springs 96 extendingto the lowermost ends of the tubes. Accordingly, upon lowering ofcarriage I8 during the working stroke, the presser foot 92 engages thework, the coil springs 96 yielding as the tools pass through the workand serving to maintain the presser foot against the work to strip thesame from the tools as they are retracted on the return stroke.

Table 2 includes an anvil |93 of wood or other material against whichthe sharpened edges of tools 32, 36 may impinge without damage, see Fig.3. This anvil is removable for replacement by means of a knockoutplunger |94 shiftable i vertically by manipulation of a lever |95pivoted beneath the table.

The reference numeral 91 indicates in general a. work positioning andgauging instrumentality or. device which is disposed on table 2 asillustrated in Figs. 2, 3, and 5. The said device is one which allowsmanual indexing of the work A transversely of the tools 32, 36 and alsopermits lateral adjustment as desiredV to permit a number of notchedopenings to be formed at spaced intervals along the edge of the stack ofsheets or to position said openings as desired relative'to the edge. Thegauge consists of a U-shaped yoke 98 embracing the vertical actuatormember 9 and disposed parallel to table 2. One leg yof this yoke hasbolted thereto at 99 a casting presenting a side edge guide or'gaugesurface |00 for the stack of sheets A and the other leg has boltedthereto at IOI a suitable cast' frame |02 for supporting certain edgeand end gauge and indexing instrumentalities to be described.

Frame |02 is generally similar in form to the casting constituting edgeguide |00, but it is more elongated, and provided with end members |03carrying the rods |04, |05, which extend longitudinally of the frame,and of which the former is, provided with a suitable calibration orscale |06 and is adapted to receive and have suitably clamped theretothe indexing stops |01. The latter rod |05 has slidably mounted thereonan indexing carriage |08 provided with a bore disposed radially of rod|04, in which bore a stop engaging finger or pin |09 is slidablymounted. This pin is connected by a suitable small crank or by othereccentric connection to a rockshaft ||0 journaled in the carriageandcontrolled by a nger piece ||I whereby actuation of the nger piececauses the pin |09 to be projected or retracted radially with referenceto the calibrated rod |06 to thereby position the pin to either engageor clear the adjustable stops on said rod. The carriage |08 has alaterally projecting end gauge finger H2l thereon and the frame |02carries a side gauge surface ||3 in line with side gauge surface |00,whereby a stack of sheets positioned against gauge nger ||2 and the sideguides |00, ||3 may be successively indexed desired distances lengthwiseof the said guides by manipulation of control lever ||l and manuallyshifting the stack in a manner which will be apparent.

The gauge device is shiftable as a unit in a direction from front toback of the work table 2', -the guide elements m4 ving as a unit becauseof their yoke connector J0. The table is provided with scales ||4coacting with the side guides |00, ||3, and the gauge is adapted to beheld in desired adjusted position by means of screws extending throughthe guide member castings andA f laterally whereby to space the saidapertures as desired along the edges of the work. It adds greatly to theease and expedition with which my machine operates as a whole bysupplementing the simultaneously, acting rotary punch and slotteroperating instrumentalities by a gauge in which little time and effortare wasted in accurately locating the stack following each operation ofthe said instrumentalities.

' In its preferred embodiment, the machine of my invention ischaracterized essentially by the fact that it permits the boring andcutting of a stack of sheets to be effected in a single reciprocatoryworking stroke without shifting of tools relative to the work or workrelative to the tools, such as is usually necessary in a multiple-strokeoperation. 'I'his is made possible in large part by the improvedhardened sheet metal cutting knife 36. The sheet metal conformedconstruction thereof permits ready disposition of chips, produces aclean cut without requiring the expenditure of a great amount of power,and may be readily and inexpensively conformed into any desired outlineto suit the needs of the particular job being done. A similar knife isdescribed and claimed in my copending application, Serial No. 171,323referred to above, wherein the same is embodied in a machine forperforming slotted apertures by a two-stroke operation, however I desireit to be understood that the said knife has equally important advantagesin its embodiment in, and was intended equally for, a one-stroke machinesuch tools have been found to be extremely effective in actualoperation.

I have illustrated and described my improvements in an embodiment whichis very practical.

I have not attempted to illustrate or describel other embodiments oradaptations as it is believed this disclosure will enable those skilledin the art to embody or adapt my improvements as may be desired.

Having thus described my invention, what I claina as new and desire tosecure by Letters Patent is:

l. A boringand cutting machine for stacks of paper sheets and like work,comprising a hollow slotting tool of hardened sheet metal bent toprovide a forward nose, rearwardly extending sides, y

and a sharpened cutting edge, a hollow rotary boring tool having asharpened edge in horizontal alinement with the cutting edge of saidslotting tool, said cutting -edges being closely associated forreciprocation in a direction axially of the boring tool, means formounting said tools for vertical reciprocation together toward and awayfrom the work, means for reciprocating said means comprising a rack onsaid mounting means, a pinion meshing with said rack, and means forrotating said pinion, single revolution clutch means controlling therotating means for said pinion, and a spring operatively engaged withsaid mounting means to return the same to initial position following aboring and cutting stroke, and means for withdrawing chips resultingfrom the boring and cutting operation through said tools by suction.

2. A boring and cutting machine for stacks of paper sheets and likework, comprising a hollow slotting tool of hardened sheet metal bent toprovide a forward nose, rearwardly extending sides, and a sharpenedcutting edge, a hollow rotary boring tool having a sharpened edge, saidcutting edges being closely associated for reciprocation together towardand away from the work, means for reciprocating said means, and meansfor withdrawing chips resulting from the boring and cutting operationthrough said tools by suction.

3. An aperturing and cutting machine for stacks of paper sheets and thelike, comprising a slotting tool, a rotary aperturing tool, means formounting said tools for reciprocation together axially of the aperturingtool, and-means for reciprocating said means, comprising a rack on saidmounting means and la pinion meshing with said rack, means for rotatingsaid pinion, single revolution clutch means controlling the rotation ofsaid pinion, and spring means operatively engaged'with said mountingmeans to return the same to initial position following an aperturing-and slotting stroke.

4. In a machine for forming notched holes in a stack of sheets or thelike, a cutting tool comprising a hardened sheet metal member bent topro-- adjacent one another .whereby vrto substantially of hardened sheetmetal bent to angular cross stack of sheets or like work, a cutting toolcom- -prising a hardened sheet metal member bent angularly to provide ahollow'cutting blade, said blade having a sharpened edge for engagementwith the stack to cut a notch therein, and a rotary punch associatedwith said cutting tool and having a cutting edge to form an openingthrough the work, the cutting edges of said punch and blade beingpositioned closely adjacent one another whereby to substantially severthe material be- 'tive to the work.

tween said notch and opening, said-blade being disposed at an angle tothe axis of said punch to facilitate passage of the blade through thework. 6. In a machine for forming notched holes in a stack of sheets orlike work, a cutting tool comprising a hardened sheet metal member bentangularly to provide a hollow cutting blade, said blade having asharpened edge for engagement with the stack to cut a notch therein, anda rotary punch associated with said cutting tool, said punch and bladebeing positioned closely adjacent one another whereby to substantiallysever the material between said notch and opening.

7: In a machine ofthe type described, a hollow notching tool comprisinga blade of hardened sheet metal bent to angular lform and having asharpened advance cutting edge, a hollow rotary boring tool having acutting edge disposed closely adjacent to and in the same plane as thecutting edge of the blade, means for reciprocating said tools as a unitrelative to and through work to be operated on, and means for creatingsuction communicating with the interior of said hollow tools to Withdrawchips therefrom.

8. In a machine of the type described, a hollow notching tool having asharpened yadvance cutting edge, a hollow aperturing tool having acutting edge disposed closely adjacent to and in the same plane as. thecutting edge of thev prising a hardened sheet metal blade bent toangular form and having the work engaging edge thereof sharpened, saidsharpened edge being substantially coplanar with the-cutting edge of theboring tool, and means for reciprocating said tools together relative tothe work.

10. In a machine for forming notched openings in a stack of sheets andIthe like, a boring tool, and a slotting tool located closely adjacentlsaid boring tool, said slotting tool comprising a blade angular in crosssection and having the work 'engaging edge thereof sharpened, saidsharpened edge being substantially coplanar with the cutting edge of theboring tool, and means for reciprocating said tools together rela- 11.In a machine for7 operating on 4work to form notched openings therein, arotary boring tool, a slotting or cutting tool comprising a knifesection and having an vedge thereof provided with a cutting edge, andmeans for reciprocating said tools together toward and from the work.

ter chips incident to the opening forming operation. 1

13. In a machine of the type described, a hollow rotary boring tool anda hollow cutting tool,

ofy said tools whereby to withdraw from the latmeans for mounting saidtools in operative re-l lation to one another and for reciprocating thesame as a unit relative to work to be operated on, comprising a hollow'actuator member, and means for actuating said actuator member, andmeans for creating a partial vacuum in said hollow actuator member andtools whereby to withdraw from the latter chips incident to the boringand cutting operation.

14. In a machine of the type described, a hollow rotary punch, a hollowslotting tool closely adjacent the punch, means for reciprocating saidpunch and tool as a unit relative to work to be operated on, and meansfor creating a partial vacuum within said hollow punch and tool towithdraw chips therefrom. Y

15. A machine for forming notched apertures in a stack of sheets or likework, comprising a frame, a hollow rotary punch, a hollow slotting tool,means mounting said punch and tool for reciprocation together relativeto the frame,

.means on said mounting means for rotating the punch, means forreciprocating said mounting means comprising a hollow actuator membermounted for reciprocation in said frame, means for positively movingsaid actuator member to and through the work, resilient means for refturning said actuator member to initial position comprising a coilcompression spring within said actuator member, and means for engagingthe spring with the actuatormember and an abutment fixed relative to theframe, means for cushioning the "return stroke of the member comprisingan air cylinder on the frame having a valved bleeding port, a plungeroperating in said cylinder, and means connecting said plunger to theactuator member, and means for creating a partial vacuum within saidhollow actuator member and for communicating said partial vacuum withsaid hollow punch and tool whereby to withdraw from the latter chipsincident to the notching and punching operation.

16. A machine for forming notched apertures in a stack of sheets or likework, comprising a frame, a hollow rotary punch, a hollow slotting tool,means mounting A,said punch and tool for reciprocation together relativeto the frame, means on said mounting means for rotating the punch,-means for reciprocating said mounting means compr'sing a hollow actuatormember mounted for r ciprocation in said frame, means for positivelymoving said actuator member to and through the work, resilient means forreturning said actuator member to initial position, means for cushioningthe return stroke of the member, and means for creating a partial vacuumwithin said hollow actuator member and for communicating said partialvacuum with said hollow punch and tool'whereby to withdraw from thelatter chipsincident to the notching and punching operation.

17. A machine for forming notched apertures in a stack of sheets or likework, comprising a frame, a hollow rotary punch, a hollow slotting tool,means mounting said punch and tool for reciprocation together relativeto the frame,

in a stack of sheets or like work, comprising a` frame, a hollowaperturing tool, a hollow slotting tool, means mounting said tools forreciprocation together normal to the Work, means for reciprocating saidmounting means comprising a hollow actuator member mounted forreciprocation in said frame, means for positively moving said actuatormember to and through the work, and resilient means for returning saidactuator member to initial position comprising a coil compression springwithin said actuator member, the spring engaging the actuator member andan abutment fixed relative to the frame, and means for creating apartial vacuum within said hollow actuator member and for communicatingsaid partial vacuum with said hollow'tools whereby to withdraw from thelatter chips incident to the slotting and aperturing operation.

19. A machine for forming notched apertures in a` stack of sheets orlike work, comprising a frame, a hollow aperturing tool, ahollowslotting tool, means mounting said tools for reciprocation togethernormal to the work, means for reciprocating said mounting meanscomprising a hollow actuator member mounted for reciprocation in saidframe, means for positively moving said actuator member to and throughthe work, and resilient means for returning said actuator member toinitial position comprising a coil compression spring within saidactuator member, the spring engaging the actuator member and an abutmentfixed relative lto the frame.

20. In a machine'for forming notched apertures in a stack of sheetsorlike work, an aperturing tool, a slotting tool, means for actuating saidtools as a unit on an operating stroke to and through the work,comprising an actuator member for said tools, a rack on said actuatormember, a pinion meshing with the rack, and means for driving the pinionon the operating stroke of the tools and for thereafter releasing thesame, spring means for returning the actuator member to initial positionupon release of the tures in a stack of sheets or like work, a frame, a'

tool, means for positively actuating said tool on an operating stroke toand through work supported on the frame, including a reciprocatingactuator memberspring means for returning the actuator member to initialposition upon completion of the operating stroke, and means to cushionthe actuator member at the end of the ,return stroke thereof, comprisinga cylinder on the frame havingl a valved exit port and a plunger carriedby the actuator member slidable'in said cylinder. l V l 22. In a machineof the class described, the combination with a Work table, of a toolcarriage, a. rotatable boring tool on said carriage, a slotting cuttermounted on said carriage radially of said boring tool with the tip ofits cutting edge closely adjacent but spaced from said boring tool sothat the periphery of the boring tool is not in rotating contact withthe cutter, and means for actuating said carriage including a manuallyengaged andv a hollow rotatable punch on said carriage having 75relation on opposite sides of the path of travel ofl a circular inwardlybeveled cutting edge, and a slotting cutter having spaced cutting edgesjoined at the tip of the cutter mounted on said carriage rradially ofsaid drill'and with its cutting edges in with the cutter, and means forsimultaneously feeding said punch and cutter to the. work.

25. In a machine oi' the class described, the

combination with a work table, of a tool carriage,

a Vhollow rotatable punch on said carriage having a circular inwardlybeveled cutting edge, and a slotting cutter on said carriage disposedradially of saidpunch with the tip of its cutting edge spaced from saidpunch a distance of the order -of .001 inch.

26. In a machine of the class described, the combination with a worktable and a carriage associated for relative reciprocating movement, of

a tubular boring tool on said carriage and a'slotting cutter mounted onsaid carriage in radiall relation to said boring tool with its tipclosely adjacent to the boring tool and having a cutting edge inapproximately the plane of the cutting edge .of the boring tool.

27. In a machine for forming notched apertures in a stack of paper'sheets, the combination with a work table and a carriage associated forrelative reciprocating movement, of, a rotary tubular boring tool onsaid carriage and adapted to form an aperture .through the stack,`and aslotting cutter adapted to form a notch in the edge of the stackandmounted on said carriage in radial relation to said boring tool with itstip spaced from the boring ,tool a distance sumciently small to permitready tearing of the material of the stack between the aperture andnotch.

28. In a machine of the class described, the combination 'of a rotarytubular boring tool c adapted to form an aperture through the stack,

a slotting cutter adapted to form a notch in the stack and mounted inradialrelation to said boring tool andv with its tip spaced from theboring tool a distance suiiciently small to permit ready tearing of thematerial of the stack between the aperture and notch, and means forsimultaneously actuating said boring tool and cutter. f l

v29. In a machine for forming notched apertures in a stack of sheets andincluding a work support, a rotatable aperturing tool anda notching tooland means for simultaneously reciprocating said tools through saidstack, said tools beinglocated suiiicientlyclose to one another topermit ready tearing of the material oi the stack between the apertureand notch formed thereby, means for adjustably positioningthe stackbeneath said tools and for enabling the stack to be successively indexedlaterally relative to the tools following the operations thereof,whereby to space a plurality of said notched apertures accurately alongthe edge of the stack, comprising a pair of alined edge guides on saidwork support adapted to engage and position said stack, a

yoke embracing the path of reciprocationof said tools and having thearms thereof secured to said edge guides to hold thesame in spacedalined the tools, one of, 'said edge guides having an elongated roddisposedv thereon and extending parallel to said guides, an indexingcarriage slidably mounted on said rod for movementparallel to said edgeguides, said carriage having an end gauge member thereon adapted toengage and position the end of the stack, a further elongated rod on`said one of said guides, said last named rod being calibrated andhaving a plurality of stopsadjustably secured thereto, said carriagehaving a pin slidably mounted thereon and projectable and retractableradially of said last named rod for engagement and disengagement withsaid stops in the adjusted position thereof, means for actuating saidpin radially to engage and disengage the same with said stops, said ycarriage and stack being shiftable laterally when the pin is disengaged,and means for adjusting said guides at right angles to the lateral pathof movement -of said carriage. i

30. In a machine for forming notched apertures in a stack of sheets andincluding a work support, a rotatable .aperturing tool and anotchingtool and means for simultaneously reciproeating said tools through saidstack, said tools being located suciently close to one another to permitready tearing of the material of the stack between the aperture andnotch formed thereby,

means for adjustably positioning the stack beneath said tools and forenablingy the stack to be successively indexed laterally relative to thetools following the operations thereof, whereby to space a plurality ofsaid notched apertures accurately along the edge of the stack,comprising a pair of alined edge guides on said work support adapted toengage and position said stack, a yoke embracing the path ofreciprocation of said tools and having the arms thereof secured to saidedge guides to hold the same in spaced alined relation on opposite sidesof the path of vtravel of the tools, one of said edge guides having anindexing carriage slidably mounted thereon for movement parallel to saidedge guides, said carriage having an end gauge member thereon adapted toengage and position the end ofI the stack, an

elongated rod on said one of said guides having a plurality of stopsadjustably secured thereto, said carriage having an element thereonprojectable and retractable radially of said rod for engagement anddisengagement with said stops in the adjusted position thereof, meansfor actuating said element to engage and disengage the same with saidstops, said carriage and stack being shiftable laterally when theelement is disengaged, and means for adjusting said guides at right langles to the lateral path of movement of said carriage. 3l. In amachine for forming notched apertures in a stack of sheets and includinga work support, an operating tool, and a notching tool' and means forreciprocating said tools through said stack, means for positioning thestack on said work support relative to said tools and foron said rod formovement ,parallel tolsaid vedge ber thereon adapted to engage andposition the stack, a further elongated rod on said one of said guides,said last named rod being calibrated and having a plurality of stopsadjustably secured thereto, said' carriage having a. latching elementmounted thereon and proj ectable and retractable radially'of said lastnamed rod for engagement and disengagement with said stops in theadjusted position thereof,means for actuating said.l

element radially to engage. and disengage the same with said stops, saidcarriage being-shiftable laterally relative to the tools Awhen theelement is disengaged, and mans for adjusting said gauge frame at rightangles to the lateral path of 'movement of said carriage.J

32.. In a machine for forming notchedv apertures in a stack of sheetsand including a work support, an aperturng tool ,.and a notching tooland means for reciprocating said tools through said stack, means forpositioning the stack on said work support relative to said tools andfor enabling the stack to be successively indexed laterally relative tovthe tools whereby to space said notched apertures along the edge of thestack, comprising a gauge frame including a pair of edge engaging guidesfor the'stackf and means secured to said edge guides and holding thesame in spacedrl relation to one another op opposite sides of theApathof travel of said edge guidesi h 'ng an Aindexing ycarriage mountedthereo or movement parallel to said edge guid said carriage having anend gauge member thereon adapted 'to engage and yposition the stack, anelongated rod on said one of said guides, said rod being calibrated andhaving a plurality of ,stops adjustably secured thereto, saidcarriagehaving azlathing element mounted thereon and projectable andretractable for engagement arid disengagement with said stops in thetools, one of guides, said carriage having an end gauge memthe 'adjustedposition i'.hereof,'meansV for' actuating said element to engage anddisengage the same with said stops, said carriage being shiftablelaterally relative to the tools when the ele- .ment is disengaged, andmeans for adjusting said gauge frame at right angles to the lateral pathof movement of said carriage.

33. In a machine of the type described including a work support, acutting tool, and means for reciprocating said tool through worksupported by said support, means for positioning the work on said worksupport relative to said tool and for enabling the work to besuccessively indexed laterally relative to the tool, comprising a gaugeframe including a pair of edge engaging guides for the work and meanssecured to said edge guides and holding the same in spaced relation toone another on opposite sides of the path of travel of the tool, one ofsaid edge guides having an elongated rod thereon and an indexingcarriage slidably mounted on said rod for movement parallel to said edgeguides, said carriage having an end gauge member thereon adapted toengage and position the work, a further elongated rodL on said one ofsaid guides, said lastV named rod being calibrated and having a plu-"rality of stops adjustably secured thereto, said carriage having alatching element' mounted thereon and projectable and retractableradial- 1y of said last named rod for engagement and disengagement withsaid stops in the adjusted position thereofgmeans for actuating saidelement radially to engage and disengage the same with said stops, saidcarriage being shiftable laterally relative to the tool when the elementis disengaged, and means for adjusting said gauge frame at right anglesto the lateral path of moyement of said carriage. A Y

FRED L. MANNY.-

